出入正压房输送带墙孔要有防止异物进入的装置，减少正压房正压透过出入口泄

The wall holes of the conveyor belt in and out of the positive pressure room must be equipped with devices to prevent the entry of foreign objects to reduce the leakage of the positive pressure through the entrance and exit of the positive pressure room (proposal discussion). <br>The bag conveyor belt enters and exits the positive pressure room mode: the bridge mode does not enter the clean area (the external chain plate and air do not enter the positive pressure room, and the internal chain plate does not bring water to the packaging area)

Access to the conveyor belt wall holes of the positive pressure room should have a device to prevent foreign objects from entering, reduce the positive pressure of the positive pressure room through the entrance and exit leakage (proposal discussion).<br>Package conveyor belt access positive pressure room mode: the use of bridge mode does not enter the cleaning area (external chain plate and air do not enter the positive pressure room, internal chain plate water does not take to the packaging area)

The wall hole of the conveyor belt in and out of the positive pressure room shall be equipped with a device to prevent foreign matters from entering, and reduce the leakage of positive pressure of the positive pressure in the positive pressure chamber through the entrance and exit (discussion on proposal).<br>The mode of entering and leaving the positive press room of the bag conveyor belt: the bridge passing mode is adopted to not enter the clean area (the outer chain plate and air are not allowed to enter the positive pressure room, and the internal chain plate water is not brought to the packaging area)<br>